initial commit: scaffolding

1 files changed, 30 insertions, 0 deletions

diff --git a/node_modules/rxjs/src/internal/util/argsArgArrayOrObject.ts b/node_modules/rxjs/src/internal/util/argsArgArrayOrObject.ts
new file mode 100644
index 0000000..483bef9
--- /dev/null
+++ b/node_modules/rxjs/src/internal/util/argsArgArrayOrObject.ts
@@ -0,0 +1,30 @@
+const { isArray } = Array;
+const { getPrototypeOf, prototype: objectProto, keys: getKeys } = Object;
+
+/**
+ * Used in functions where either a list of arguments, a single array of arguments, or a
+ * dictionary of arguments can be returned. Returns an object with an `args` property with
+ * the arguments in an array, if it is a dictionary, it will also return the `keys` in another
+ * property.
+ */
+export function argsArgArrayOrObject<T, O extends Record<string, T>>(args: T[] | [O] | [T[]]): { args: T[]; keys: string[] | null } {
+  if (args.length === 1) {
+    const first = args[0];
+    if (isArray(first)) {
+      return { args: first, keys: null };
+    }
+    if (isPOJO(first)) {
+      const keys = getKeys(first);
+      return {
+        args: keys.map((key) => first[key]),
+        keys,
+      };
+    }
+  }
+
+  return { args: args as T[], keys: null };
+}
+
+function isPOJO(obj: any): obj is object {
+  return obj && typeof obj === 'object' && getPrototypeOf(obj) === objectProto;
+}